(;
GM[1]
SZ[19]
AW[dl][em][dn][fq][hq][qf][qm]
AB[pj][dj][dp][pd][pp][dd][en][eo][cq][jq][np][nd]
TR[hq]
C[Problem 54. Black to play.  

White has extended with the marked stone. How should Black continue ? ]
(;B[jo]
TE[2]
C[Correct Answer.  

Jumping to Black 1 is the strongest move. ]
;W[gn]
C[If White lightly jumps to 2, ... ]
;B[fm]
C[... Black will exchange 3 ... ]
;W[fl]
C[... for 4, ... ]
(;B[gp]
C[... then peep at 5. ]
;W[hp];B[ho];W[go];B[hn];W[fp];B[gm];W[dr];B[cr];W[jr];B[kr];W[ir]
C[White can live with the sequence to 16, ... ]
;B[kq]
C[... but she is confined to the bottom and Black is thick on the outside. <= ]
)
(;B[gm]
C[White is thin.  

Black 5 is not good, ... ]
;W[in]
C[... but White is too thin to jump lightly to 6. ]
;B[gl]
C[Black will turn once at 7, ... ]
;W[fk];B[hp]
C[... then attach with 9. ]
;W[gp];B[ho]
LB[hn:B][go:A]
C[After Black 11, the points A and B are miai, so White's stones are trapped. <= ]
))
(;B[io]
C[How the game continued.  

Black attacked White with the knight's move of 1. This was also a strong move, but ... ]
;W[ho]
C[... it led to complications after White attached with 2. <= ]
)
)